In 1970, Melvin Moore and his musician friends from Chicago began their careers backing (vocal & musicians) for the duo simtec & wylie. In 1973, Melvin and his friends issued their first LP without "Simtec & willie" using the name of south side movement. Melvin was the vocalist of the band and recorded together 3 LPs and many singles. When the band split in the Mid 70s, Melvin began his own solo career and released this incredible song "all of a sudden" in the early 80s. This single is very very rare but the UK label "Goldmine Soul Supply" has compiled it in their various artists "Modern soul Vol. 3".